Hi BK Brown
You might laugh at this one put my father-en law, and my self put a greyhound engine 6.5 hp horizontal shaft from Habor Frieght and have not had any problems with them. My father-en law has a walk behind tiller with the tiller in the back and its self perpelled with no problems its on it's two or three year he just uses it for his garden but has a pretty big one he's retired. They look like a honda ,so i call them a want to be honda. The one i have is on a front tine tiller and it to heavy of a engine, its very hard to control. The engine that came off of it was a 3 or 3.5 hp so this is to big and heavy got good horsepower run half throttle. Another bad part is with the new engines that have the auto shut-off in the oil if you tip the engine to far it shuts off right a way kind of a pain. I think sometimes they have them on sale for a little over $100 bucks reg price is like $160.00.Depenting on how much you use this thing might be a way to go, i don"t use mine much maybe 3 or 4 times a year for one hour each time so i didn't want to put much money in it. Got tried of pulling the pull string on the old engine and this one will start in one or two pulls.